   (month-day ([this] (wrap (MonthDay/parse this)))
              ([this param] (wrap (MonthDay/parse this (unwrap param)))))
   java.lang.Long
-  (month-day [month day] (MonthDay/of month day)))
+  (month-day [month day] (wrap (MonthDay/of month day))))
 
 (defn day-of-week?
   "Returns true if the given value is an exact day of week.

  java.time.ZoneId
  (day-of-week [this] (wrap (DayOfWeek/from (LocalDate/now this))))
  java.lang.Long
  (day-of-week [this] (DayOfWeek/of this)))

(defn zone-id?
  "Returns true if the given value is a time zone.

  java.time.ZoneId
  (month [this] (wrap (Month/from (LocalDate/now this))))
  java.lang.Long
  (month [this] (wrap (Month/of this))))

(defn month-day?
  "Returns true if the given value is a combination of month and day of month."
